MySQL Cluster - Data node still in state "starting" (no replies)

Hello,

When I start my second SQL Data Node, he still in state "starting" :

Cluster Configuration
---------------------
[ndbd(NDB)] 2 node(s)
id=3 @192.168.70.19 (mysql-5.6.19 ndb-7.3.6, Nodegroup: 0, *)
id=4 @192.168.70.20 (mysql-5.6.19 ndb-7.3.6, starting, Nodegroup: 0)

[ndb_mgmd(MGM)] 2 node(s)
id=1 @192.168.70.13 (mysql-5.6.19 ndb-7.3.6)
id=2 @192.168.70.14 (mysql-5.6.19 ndb-7.3.6)

[mysqld(API)] 3 node(s)
id=50 @192.168.70.13 (mysql-5.6.19 ndb-7.3.6)
id=51 @192.168.70.14 (mysql-5.6.19 ndb-7.3.6)
id=52 @192.168.70.15 (mysql-5.6.19 ndb-7.3.6)


In the log I see :

Locked tid = 1476 to CPU ok
Started thread, index = 33, id = 1477, type = NdbfsThread
Locked tid = 1477 to CPU ok
WOPool::init(61, 9)
RWPool::init(22, 14)
RWPool::init(42, 75)
LCPFragWatchdog : WarnElapsed : 20000(ms) MaxElapsed 60000(ms) : period millis : 10000
blockSz: 800, wpp: 8188 -> 624 (76)
RWPool::init(29, 624)
RWPool::init(42, 16)
RWPool::init(62, 12)
RWPool::init(42, 83)
RWPool::init(c2, 18)
RWPool::init(e2, 16)
WOPool::init(41, 8)
RWPool::init(82, 12)
RWPool::init(a2, 54)
WOPool::init(21, 10)
blockSz: 1024, wpp: 8188 -> 816 (28)
RWPool::init(68, 816)
2014-07-29 12:15:31 [ndbd] INFO -- Start phase 0 completed
2014-07-29 12:15:31 [ndbd] INFO -- Using locked memory
2014-07-29 12:15:31 [ndbd] INFO -- timerHandlingLab, expected 10ms sleep, not scheduled for: 181 (ms)

What's wrong ? Did the config start after a moment ?

Best regards